Vocabulary Word Definition Picture

Newton’s Law of Inertia

An object at rest stays at rest or an object in motion stays in motion until unbalanced forces act upon it. This is often referred to as Newton's First Law of Motion.

Inertia

The tendency of a physical object to remain still or continue moving, unless force is applied.

At Rest

The state of an object when it is not in motion.

Unbalanced Forces

Forces on an object that cause change in the motion of the object.

Laws of Force and Motion – Read pages 49-54

Vocabulary Word Definition Picture

Newton’s Law of Force and

Acceleration

Acceleration of an object depends on the object's mass and magnitude of the force acting upon it (F=ma) is often referred to as Newton's Second Law of Motion.

Force

A push or pull that can change the motion of an object.

Magnitude

The size or quantity of something.

Acceleration

The rate of change in an object's speed.

Laws of Force and Motion – Read pages 49-54

Vocabulary Word Definition Picture

Newton’s Law of Action-Reaction

Newton's law that states that for every action there is an equal and opposite reaction is often referred to as Newton's Third Law of Motion.

Action

The way that something causes a change.

Reaction

Resistance or force of equal magnitude acting in the opposite direction to an action force.

Laws of Force and Motion – Read pages 49-54